In the Catholic Church, there's a difference between the validity and licitness of a sacrament. A biological male who self-identified as female could be validly ordained a priest but it would never actually happen in reality because s/he would fail the psychological testing, selection process etc. so it wouldn't be a licit ordination.
Who gives a toss what it says in the official doctrine?
Most practising Catholics do. That's how we understand anything about the mystery of God or what the Church teaches about anything at all. I would go so far as to say that caring about what the 'official doctrine' is is one of the most defining features of Catholicism.
The examples you then go on to give are quite confused, e.g. 'decreeing that women cannot be priests' is part of the doctrine of the Church. Preventing pregnant cancer patients from accessing treatment is not only not the doctrine of the Church but directly against it. I would be interested to know where and who was involved in that, I really doubt it was anyone seriously involved in the Church.
It is also untrue that priests hold all the power and authority in the Church. For example, today Pope Francis appointed 5 new people to the CDF (what used to be the Inquisition): three of them are women and two are priests.